In a child with suspected Reye syndrome, which laboratory finding would be not consistent with the diagnosis?

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Enhance your knowledge with the Ciulla Clinical Chemistry Test. Study with interactive quizzes, featuring flashcards and multiple-choice questions. Each question offers hints and explanations for better understanding. Prepare effectively and excel in your exam!

Multiple Choice

In a child with suspected Reye syndrome, which laboratory finding would be not consistent with the diagnosis?

Explanation:
In Reye syndrome, the liver injury is primarily hepatocellular and metabolic. Damaged hepatocytes release enzymes like AST and ALT, so those transaminases are elevated. The liver also fails to adequately detoxify ammonia, leading to hyperammonemia, which is a hallmark of the condition and contributes to encephalopathy. Bilirubin elevation, however, is not a prominent feature early in Reye syndrome because there isn’t a primary cholestatic process; bilirubin may remain normal or only rise mildly as the disease progresses. Therefore, elevated bilirubin would not fit the typical lab pattern of Reye syndrome, making it the not-consistent finding.

In Reye syndrome, the liver injury is primarily hepatocellular and metabolic. Damaged hepatocytes release enzymes like AST and ALT, so those transaminases are elevated. The liver also fails to adequately detoxify ammonia, leading to hyperammonemia, which is a hallmark of the condition and contributes to encephalopathy. Bilirubin elevation, however, is not a prominent feature early in Reye syndrome because there isn’t a primary cholestatic process; bilirubin may remain normal or only rise mildly as the disease progresses. Therefore, elevated bilirubin would not fit the typical lab pattern of Reye syndrome, making it the not-consistent finding.

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